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Crossover tube/ boost bottle diameter?


91coupemike

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I made nipples that fit in the boots where the crossover tube goes in. 1/2" copper pipe fits well. Then I use a Motion Pro sync gauge.

When I first used the sync gauge on the banshee, I ended up with unequal turns on the air screws to get the idle mix right. I've since then changed pilots, and found the whoever installed the originals left a burr that obstructed flow. So I'd say the sync tool would also be good for diagnosing certain idle and off idle issues as well.

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You definitely can sync carbs on a multi cylinder engine using a monometer. Techs have been using this method for years.. works perfectly.

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